There is a call for the next Mayor of London to rethink ways of tackling the capital's environmental issues.
The London Assembly warning comes with claims Boris Johnson has, or will fail to reach any of the targets he set when he came to power.
Today members of City Hall's environment committee met to review what progress there has been, and what needs to be done in future.
In response to the Environment Committee's observations, Deputy Mayor for Environment and Energy Matthew Pencharz said: "We welcome the Assembly call for a new Environment Strategy.
The Mayor is supporting it through initiatives such as Sustainable Drainage Action Plan, London Energy Plan and plans for the world's first Ultra Low Emission Zone in 2020."